Results 21 to 30 of about 15,968 (115)

The Role of Public Finance to Address the Global Finance Gap for Drinking Water Services

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Meeting SDG target 6.1 for drinking water requires addressing the finance gap between the funds available from tariffs, taxes and transfers, and the life‐cycle costs of sustaining these services. While there are li‐mitations to applying repayable finance to address this gap, governments can be well suited to support both drinking water ...
Kristina Nilsson
wiley   +1 more source

不同覆盖对夏玉米叶片光合和水分利用效率日变化的影响

open access: yesShuitu Baochi Xuebao, 2004
在中国气象局农业气象试验基地,对留残茬和秸秆覆盖措施下夏玉米叶片光合作用和叶片水平上的水分利用效率进行了试验研究,以探索夏玉米在这两种方式下的节水抗旱高产的生理生态机制。试验结果表明:光合速率日变化差异主要表现在上午;下午虽不甚明显,但也是覆盖和残茬两个处理略高于对照,说明2种土表覆盖方式促进了该时段光合速率的提高。留残茬和覆盖能明显提高夏玉米叶片水平上的水分利用效率,尤其在下午表现更为明显,最终提高产量水平上的水分利用效率,使农田的光、温和水资源得以科学有效地利用。
刘庚山 郭安红 任三学 安顺清 阳园燕 毛飞 赵花荣
doaj   +2 more sources

保水剂施用对丹参物质形成与养分利用的影响

open access: yesShuitu Baochi Xuebao, 2011
阐明保水剂在道地丹参种植中的应用效果有助于保水剂在丹参节水抗旱种植中的合理应用。利用盆栽试验,比较不同保水剂用量下丹参物质形成、氮磷钾养分的吸收与利用效率的差异。结果表明,施用保水剂能促进干物质的积累与分配,增加根/冠比和丹参产量;保水剂施用降低了土壤容重,适度的土壤容重减小有助于丹参高产;不同保水剂用量下氮磷钾养分在丹参根系与地上部中的吸收分配与积累、农艺利用效率存在明显差异,过高的剂量不利于丹参的生长与养分的吸收利用,适宜剂量能显著提高丹参产量和氮磷钾肥农艺利用效率。1.2~1.8g ...
寇太记   +5 more
doaj  

Effects of organized guarding on mortality from human–elephant conflict in northeast India

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Human–elephant conflict (HEC) frequently results in human and elephant mortality, posing major social justice and conservation concerns across Asia and Africa. Although a variety of interventions have been introduced to mitigate HEC, rigorous evaluations of how they affect mortality are practically nonexistent.
Nitin Sekar   +6 more
wiley   +1 more source

Metadiscourse and Teacher Moves for Supporting Student Reasoning in Linguistics Classroom Interactions

open access: yesInternational Journal of Applied Linguistics, Volume 36, Issue 1, Page 522-539, February 2026.
ABSTRACT This paper examines the features of metadiscourse across different teacher moves in university linguistics classroom discourse and the teaching strategies reflected in its use. The results reveal that teachers employ diverse metadiscourse during classroom interactions to support student reasoning.
Jingjie Li, Wenjie Hu
wiley   +1 more source

调亏灌溉对新疆滴灌春小麦土壤水分、硝态氮分布及产量的影响

open access: yesShuitu Baochi Xuebao, 2018
2017年和2018年在北疆滴灌春小麦栽培中,额定施氮量为纯氮300 kg/hm2,设置3个调亏灌水量(水分不调亏E1:100% ET0;水分中度调亏E2:80% ET0;水分重度调亏E3:60% ET0)和2个小麦品种(水分敏感型X1:新春22;水分不敏感型X2:新春44),灌溉频率为7天1次。研究不同处理对滴灌春小麦土壤水分、硝态氮分布及产量的影响。结果表明:(1)水分重度调亏(E3)可以缓解0—40 cm土壤水分和土壤硝态氮向深层流失,减少作物耗水量,提高水分利用效率。(2 ...
万文亮   +5 more
doaj  

行距比例及密度对绿洲灌区玉米水分利用效率的互作效应

open access: yesShuitu Baochi Xuebao, 2020
探究是否可以将行距比例和种植密度集成于同一作物生产系统中来提高作物产量,增加水分利用效率。以玉米"五谷568"为研究材料,于2017—2018年进行大田试验,设7:3(L1,宽行56 cm:窄行24 cm),6:4(L2,宽行48 cm:窄行32 cm),5:5(L3,等行距40 cm)3个行距比例水平,82 500株/hm2(D1)、90 000株/hm2(D2)、97 500株/hm2(D3)、105 000株/hm2(D4)、112 500株/hm2(D5)5个种植密度 ...
贺玉鹏   +6 more
doaj  

A Dual Closed‐Loop Process to Recycle High Nickel Cathode of Spent Lithium‐Ion Batteries via Deep Eutectic Solvents: Computational Screening and Experimental Validation

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Deep eutectic solvents (DESs) have displayed a significant potential in green recycling of spent lithium‐ion batteries (LIBs) cathode materials. In this study, we proposed a computational screening strategy based on the binding energy and hydrogen bonding performance via density functional theory and molecular dynamic calculation, achieving a ...
Yang Chen   +7 more
wiley   +1 more source

基于AquaCrop模型的库尔勒香梨生长动态模拟及滴灌制度优化

open access: yesShuitu Baochi Xuebao, 2023
为探究省力化栽培模式下库尔勒香梨园适宜的灌溉制度,依据4种灌溉定额(3 750,5 250,6 750,8 250 m3/hm2)条件下2年香梨的田间试验数据,通过冠层覆盖度、土壤含水量和蒸散强度(ETa)和产量指标,确定AquaCrop模型参数。设置不同灌水场景,综合考虑产量、水分利用效率和灌溉水利用效率,利用AquaCrop模型优化香梨灌溉制度。结果表明:Y2W3处理产量高出其余处理3.87%~16.86%,Y2W1处理水分利用效率高出其余处理2.88%~27.20 ...
张景瑞   +4 more
doaj  

High nitrogen enrichment buffers plant photosynthesis against herbivory damage

open access: yesFunctional Ecology, Volume 40, Issue 1, Page 229-238, January 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivorous insects and nitrogen deposition are key drivers of ecosystem productivity under global change. However, their combined effects on plant photosynthesis, particularly during insect outbreaks, remain poorly understood in natural ecosystems.
Yongqiang Zhang   +6 more
wiley   +1 more source

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